1 4

Purple Petra Basil Seeds

Purple Petra Basil Seeds

6093

Organic
4.2
Rated 4.2 out of 5 stars
23

A mild, sweet taste that is perfect for those who love basil's flavor, but shy away from too much herbal spiciness. It's excellent in a variety of dishes, including pesto, pasta, and salads. 'Purple Petra' also makes a lovely pink-tinted vinegar or oil. Grow it as a companion plant for your tomatoes or in other areas of the garden as an ornamental. Try pairing it with 'Lemon Drop' French marigold or Bells of Ireland for vibrant contrast.

$2.69
$2.69
Sale Sold out

~0.5 g

(~240 seeds)

Shipping calculated at checkout.
View full details
  • Variety Info
  • Sowing Info
  • Growing Info
  • Learn More

Variety Info

Family: Laminaceae

Type: Basil (Learn more)

Native: Probably Africa, but in cultivation for so long that it cannot be verified.

Hardiness: Frost-sensitive annual

Exposure: Full sun to part shade

Plant Dimensions: 24" tall, 18"–24" wide

Variety Info: Large, dark reddish-purple glossy leaves with a mild, sweet flavor. Small lavender-blue flower spikes appear in late summer.

Attributes: Frost Sensitive, Good for Containers

Non GMO Project

Sowing Info

When to Sow Outside: 1 to 2 weeks after your average last frost date, and when soil temperature is at least 60°F, ideally 65°–85°F. Successive Sowings: We recommend 3 or 4 successive sowings every 3 weeks after initial sowing.

When to Start Inside: RECOMMENDED. 4 to 6 weeks before transplanting outside. Transplant when your nighttime temperatures are above 50°F.

Days to Emerge: 5 – 10 Days

Seed Depth: ¼"

Seed Spacing: A group of 2 seeds every 12"

Row Spacing: 12"

Thinning: When 2" tall, thin to 1 every 12"

Your hardiness zone is

Growing Info

Harvesting: Basil flavor is best before the plant flowers. Harvest up to 1/3 of the plant at a time, leaving enough for the plant to be healthy and keep producing. Harvest prior to a frost; basil is very frost sensitive.

4.2
Rated 4.2 out of 5 stars
Based on 23 reviews
Total 5 star reviews: 14 Total 4 star reviews: 5 Total 3 star reviews: 1 Total 2 star reviews: 0 Total 1 star reviews: 3
Slide 1 selected
Search
Search Reviews
Rating
Ratings
Which best describes you as a gardener?
Which best describes you as a gardener?
Write a Review (Opens in a new window)
23 reviews
  • Elizabeth S.
    CO, United States
    Verified Buyer
    Rated 3 out of 5 stars
    9/19/25
    Slow success

    Slow growing but still seeing progress. Compared to Genovese basil, this has been less successful.

    Was this helpful?
    Which best describes you as a gardener? Intermediate
    Who do you grow for? Yourself
    How do you prefer to grow? Container
    BI Profile picture for Botanical Interests
    Botanical Interests
    9/24/25

    Hello Elizabeth,

    Thank you for sharing your feedback on the Purple Petra Basil 🌿. It’s true that this variety tends to grow more slowly compared to Genovese basil. That’s completely normal since Purple Petra focuses more of its energy on developing its vibrant purple foliage and slightly sweeter flavor. The good news is that steady growth is a great sign that it’s establishing strong roots, and with a little patience, you’ll be rewarded with beautiful, flavorful leaves.

    We appreciate you taking the time to share your experience and hope you enjoy this unique basil as it continues to mature. Happy gardening! 🌿

  • Stephanie Vitoria S.
    Rated 5 out of 5 stars
    3/5/25
    5 Stars

    Stunning!

    Was this helpful?
  • Mary T.
    Verified Buyer
    Rated 5 out of 5 stars
    2/12/25
    5 Stars

    Order arrived promptly

    Was this helpful?
  • Brian D.
    Verified Buyer
    Rated 5 out of 5 stars
    1/12/25
    5 Stars

    Majority of seeds germinated and great quality.

    Was this helpful?
  • Brittany S.
    Verified Buyer
    Rated 4 out of 5 stars
    8/25/24
    4 Stars

    Basil is very hearty in the Las Vegas heat, and puts on an abundance of leaves and gorgeous lavender flowers that all of the native pollinators love. However, I can’t seem to get that vibrant purple color advertised on front of the seed packet. All of the leaves start off with purple venation but progress to fully green as they age. They get 8-10 hours of sun light a day. Any tips on how to grow this for the purple foliage?

    Was this helpful?
    Which best describes you as a gardener? Intermediate